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1 Recommended Table of Signal and Interlocking Units and Interpretations Revised 6 (7 8 Pages) A. Purpose This Manual Part recommends relative Signal and Interlocking unit values used for division of costs in joint facility and other agreements. A relative unit value can be defined as a unit of cost for construction and maintenance of a signal apparatus. No table can be made which will be entirely equitable for dividing all the cost of ownership, installation, operation and maintenance, but experience has demonstrated that almost any table of units will prove equitable when applied fairly and the law of averages is allowed to apply. Item No. Description Relative Unit Value B. Wayside Signal Devices 1. Signal inoperative arm or light Signal complete with mast, blade or light, inoperative *Signal, three aspects, semaphore or light *Signal, two aspects, semaphore or light *Signal, one aspect, semaphore or light *Signal, each additional aspect *Signal, mechanical operated, manual block, train order, or railroad grade crossing signal, two or three aspects *SmashboardsSmashboards, mechanical or power *Marker light, operated *Grade signal, semaphore or light Railroad grade crossing gate, per gate a. Mechanical... 4 b. Power Wayside Interface Unit (WIU) for PTC systems (stand alone) Wayside Interface Unit (WIU) for PTC systems (integrated) Wayside Data Radio for PTC systems 1 *Each semaphore arm, light signal, or marker device to be counted separately. C. Track, Switch and Derail Devices 1. Switch with one or two points or derail a. Mechanical... 4 b. Power Single slip switch with two points - 1 Formatted: Tab stops: 0.5", Left + Not at 0.19" Formatted: Tab stops: 0.5", Left + Not at 1.5"

2 a. Mechanical... 4 b. Power Double slip switch with four points a. Mechanical... 8 b. Power Movable point frog with one or two points a.... Mechanical 4 b.... Power 8 5. Movable point frog with four points a.... Mechanical 8 b.... Power Derail, pipe connected to switch and operated thereby Spring switch a. Buffer... 1 b. Mechanical facing point lock Switch and lock movement, mechanical Switch circuit controller, signal or highway-rail gradegradecontroller crossing warning device (not part of switch & lock mov t) Switch point detector (for PTC Systems) Switch or derail position, target or light Snow removal device, controlled or automatic, per pair of switch points Switch point helper a. Mechanical or Pipe Connected... 1 b. Power... 4 D. Movable Bridge Devices 1. Facing point lock or movable bridge lock or rail lock a. Mechanical... 2 b. Power Facing point lock, or movable bridge lock or rail lock operated with another unit Movable bridge circuit controller or pipe coupler a. Mechanical... 4 b. Power Movable Bridge circuit controller or pipe coupler operated with another unit Formatted: Tab stops: 0.5", Left + Not at 0.19" Formatted: Tab stops: 0.5", Left + Not at 0.19" + 1.5" Formatted: Tab stops: 0.5", Left + Not at 0.19" + 1.5" Commented [WW1]: Is this still relevant? Commented [WW2]: Is this still relevant?

3 5. Auxiliary circuit controller or movable bridge wedge, latch, lift rail, etc 1 6. Proximity switch detector or infrared detector for movable bridge wedge, latch, lift rail, etc. (per detector)... 2 E. Track Occupancy Detection Devices 1. Non-coded track circuit (dc or ac/dc) Coded track circuit a. Relay equipment... 4 b. Electronic equipment Superimposed circuit on track circuit Auxiliary track instrument for train detection Motion sensitive track circuit to continuously detect rate and direction of motion (constant warning) a. Non-redundant 10 b. Redundant Motion sensitive track circuit to continuously detect direction of motion a. Non-redundant.. 6 b. Redundant Presence detector Train control inductor or loop circuit Axle or wheel counter Bonded rail joints, per mile each rail Transponder, active... 1 F. Locking Devices 1. Electric lever lock applied to a mechanical lever Electric lock on hand-operated switch or railroad crossing gate Electric lock applied to units C.1 or, C.2, or B Manual operated time lock applied to a mechanical lever, han d operated switch and or to units C.1 or, C.2, or B G. Highway-Rail GradeGrade Crossing Warning Devices 1. Signal, bell-type, with or without reflectorized signs, per mast Signal, flashing light type (one pair), with or without bell or refl ectorized signs, per mast Additional pair of flashing lights, illuminated "stop" sign or, auxiliary illuminated sign (eaea.) or rotating "stop" disc Mechanical flagman (wig-wag) Each automatic gate mechanism, arm up to 26 ft (7.9 m) Formatted: Indent: Left: 1", No bullets or numbering, Tab stops: Not at 1" Formatted: Indent: Left: 1", No bullets or numbering, Tab stops: Not at 1"

4 Each automatic gate mechanism, arm over 26 ft (7.9 m) Manual power gate, per mast 2 a. Mechanical... 1 b. Power Radio data link, per unit Interconnection circuit Logic and control timing system for applications using exit gate(s).10 H. Classification Yard Devices 1. Car retarder including operating mechanism per rail foot of braking length per rail Weigh rail Radar unit Weather station... 4 I. Indicators and Detector Device 1. Wayside track occupancy or switch position Yard track Third rail clearance, per instrument Switch or derail position, target or light Fence, slide, falling rock, or slump per 100 ft (30.5 m) High water or fire, per installation Dragging equipment, per detector Clearance, high wide load Hot bearing or wheel system Hot bearing and wheel system Automatic Eequipment Iidentification (AEI) system Wheel sensor Wheel impact system Radio annunciator for train inspection Photo electric cell, per unit Highway vehicle detector, per detection zone... 2 J. Traffic Control Devices 1. Control function or Lever including circuit, within interlocking Control function or Lever including circuits, between interlockings Code unit for remote control Carrier unit Radio data link, per unit Control operators work station a. Local Control PanelsAdditional controls and/or indications Commented [WW3]: Is this still relevant?

5 b. Back office PTC equipment Mechanical locking bed, per units of five levers Approach locking per track per direction Time locking per track per direction... 1 K. Back Up Power Supply Systems 1. Generator, per increments of 5 kva Solar panel system, per increments of 2 kva Uninterrupted power supply system, per increments of 3 kva Battery and charger, per set... 1 L. Wires, Working Conductors (between instrument housings) 1. Pole line open wire, two wire each circuit per mile Aerial cable, one pair wires per mile Underground cable or wires, two pairs per mile... 1 M. Positive Train Control NM. 1. Wayside Interface Unit (WIU) for PTC systems (stand alonestand- ) alone) Wayside Interface Unit (WIU) for PTC systems (integrated)..) Wayside Data Radio for PTC systems Transponder/balise (passive) Transponder/balise (active) b. Back office PTC equipment Track Data Configuration Management (per track mile) Miscellaneous Devices 1. Operations recorder or data logger Air compressor for switch and retarder control... 2 INTERPRETATIONS ON. Wayside Signal Devices: - 5

6 Signal inoperative arm or light: an inoperative arm light or marker on a mast on which there are operative arms and for which no separate control is required. PO. QP. 2. Signal, complete with mast, blade, or light inoperative: a signal mast on which there are no operative arms and all arms, lights or markers being in a fixed position. 3. Signal, three aspects:,a semaphore, or light:incandescent or LED a threeposition signal, such as a signal displaying red, yellow, or green aspect; each aspect has a value of 2 units. 4. Signal, two aspects, a semaphore, incandescent or LED semaphore or light: a two-position signal, such as a signal displaying red or green aspect; each aspect has a value of 2 units. 5. Signal, one aspect:, a semaphore, incandescent or LED semaphore or light: a one-position operative signal. 6. Signal, each additional aspect where there may be a four position signal:; that is, one a signal displaying red, yellow, green or lunar white, or one displaying red, yellow, flashing yellow or green or one displaying four rows of lights. No aspect should be counted twice unless it is displayed both steady and flashing. 7. Marker light, operated: a separate control with marker light displayed. Track, Switch and Derail Devices: 1. Derail, pipe connected to switch and operated thereby: derail and pipe connections only. Does not include the switch machine Switch and lock movement, mechanical: a switch operating mechanism usually applied to hand-operated switch or derail. Track Occupancy Detection Devices: 1. Non-coded track circuit: includes continuous ac, dc or audio frequency track circuit. Formatted: Font: Arial Formatted: List Paragraph, Numbered + Level: 1 + Numbering Style: 1, 2, 3, + Start at: 1 + Alignment: Left + Aligned at: 0.5" + Indent at: 1" Formatted: Indent: Left: 0", First line: 0" Formatted: Font: Arial - 6

7 2. Coded track circuit: a coded track circuit, ac or dc or audio frequency regardless of the number of codes. Reversal of coded track for movement in opposite direction where same equipment is used does not change unit value. Where duplicate equipment is used in reversing track circuits, then each direction will count separately. Where coded ac also provides cab signal circuit if the frequency is the same. 3. Superimposed circuit or track circuit: additional form of energy superimposed on a track circuit. 4. Motion sensitive track circuit: Each track circuit shall be counted separately.. Q. R. Highway-Rail GradeGrade Crossing Warning Devices: RS. 1. Highway-rail gradegrade crossing signal, flashing light type (one pair of flashing lights), with or without bell or reflectorized signs, per mast. A mast with two flashing light units only in the direction of traffic, with or without inoperative auxiliary signs, and takes into consideration control circuits. 2. Additional pair of flashing lights, illuminated STOP sign,or auxiliary illuminated sign or rotating STOP disc: a pair of backlights, an extra crossarm with one pair of lights or illuminated NO TURN sign. 3. Each gate mechanism, automatic arm up to 26 ft (7.9 m) includes light or lights attached. 4. Each gate mechanism, automatic arm over 26 ft (7.9 m) includes light or lights attached. Traffic Control Device: 1. Control function or lever, including circuit within interlocking: the control function or traffic lever that checks the movement of the train through the interlocking at the time it is being made. 2. Control function or lever, including circuits between interlockings: the control function or traffic lever and associated circuits that check the block and opposing signals at the next interlocking/block station. This control function or lever and associated circuits hold traffic in one direction until the route for which they were established is clear. ST. Instructions For Form : Formatted: Indent: Left: 0", Hanging: 0.5", No bullets or numbering, Tab stops: 0.75", Left + Not at 0.5" Commented [WW4]: Is this still relevant? - 7

8 Form is a suggested example of a shared Units Value Form and should be filled out by each carrier who share the division of costs in joint facilities and other agreements. 2. All Fforms should be accompanied by an associated reference drawing showing a track layout with all functional units included. The plans should include the Plan Number, Original Issue Date, Revision Number and the date of the latest revision. 3. The Carrier s agreement number and the latest audit date should be included on the form. 4. A suggested format for Value Of Units form is illustrated as example form All functional units should be listed on a form with the Value of Units as stated in the latest revision of Manual. Formatted: Indent: Left: 0.5", Hanging: 0.5", Space Before: 6 pt, After: 12 pt, Tab stops: 1", List tab + Not at 0.75" - 8

9 Distribution of Units as of xxxxxxx xx, xxxx for xxxxlocationxxxx Plan # Dated Issue # Rev. # Dated Function Item Value of Units Totals: Proportions Insert Column Numbers to Correspond with Columns 1-4 TOTALS COLUMNS 1 TOTALS COLUMNS 2 TOTALS COLUMNS 3 TOTALS COLUMNS 4 Construction Maintenance Operation Operating (Operator's Salary, Supplies, Etc.) Ownership Sig. Sta. Machine Interlocking xxxxxxxx AREMA Signal Manual Recommended Table of Signal and Interlocking Units and Interpretations Dated: xxxx Audit # Date Form Sheet 1 of 1 Effective xxxxxxx xx,xxxx Agreement Approved: Approved: Title Title Approved: Approved: Title Notes: Title Figure 1321: Exhibit C FORM